Clock



FIG. 1 is a perspective view of a clock in an open position;

FIG. 2 is a perspective view of a clock in a closed position;

FIG. 3 is a front elevational view thereof in the closed position;

FIG. 4 is a rear elevational view thereof in the closed position;

FIG. 5 is a top plan view thereof in the closed position;

FIG. 6 is a bottom plan view thereof in the closed position;

FIG. 7 is a right side elevational view thereof in the closed position;and,

FIG. 8 is a left side elevational view thereof in the closed position.

The portions shown in broken lines are included for illustrativepurposes only and form no part of the claimed design.

The ornamental design for a clock, as shown and described.